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39 lines
2.4 KiB
C
39 lines
2.4 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/dns/dns.h"
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#include "libc/macros.internal.h"
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#include "libc/mem/mem.h"
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#include "libc/sock/sock.h"
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#include "libc/sysv/consts/af.h"
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#define SIZE ROUNDUP(sizeof(struct addrinfo), sizeof(void *))
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#define ADDRLEN sizeof(struct sockaddr_in)
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struct addrinfo *newaddrinfo(uint16_t port) {
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struct addrinfo *ai;
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if ((ai = calloc(1, SIZE + ADDRLEN + DNS_NAME_MAX + 1))) {
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ai->ai_family = AF_INET;
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ai->ai_addrlen = ADDRLEN;
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ai->ai_addr4 = (struct sockaddr_in *)((char *)ai + SIZE);
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ai->ai_addr4->sin_family = AF_INET;
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ai->ai_addr4->sin_port = htons(port);
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ai->ai_canonname = (char *)ai + SIZE + ADDRLEN;
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}
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return ai;
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}
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